Anti-collision alarm device for automobile

Abstract

The present invention relates to an automobile anti-collision alarm device applied in the field of automobile safety technology, comprising a support box and an anti-collision detection warning system, the support box being fixedly installed at the front end of the automobile, an electric push rod arranged vertically downward being fixedly installed in the support box, the output end of the electric push rod being fixedly connected to a connecting plate, the bottom end of the connecting plate being fixedly installed with a pressure sensor, an anti-collision gap detection rod being arranged directly below the pressure sensor, a through-strut rod being arranged in the support box, a through-connection groove matching the through-strut rod being opened on the anti-collision gap detection rod, the through-strut rod passing through the through-connection groove and being slidably connected thereto, and the through-strut rod being fixedly connected to the connecting plate; the anti-collision alarm device in the present application can test whether there is sufficient safety gap between the automobile chassis and the curb before the automobile drives onto the curb, and can actively issue an early warning when it is tested that the safety gap is insufficient, so as to fundamentally avoid the risk of collision between the chassis and the curb, thereby improving the safety of the automobile.

Description

Technical Field

[0001] The present invention relates to an anti-collision alarm device, in particular to an anti-collision alarm device for automobiles applied in the technical field of automobile safety. Background Art

[0002] A car is a vehicle with four or more wheels, driven by a power plant (such as an internal combustion engine or electric motor), primarily used to carry people or cargo. In most situations, a car may need to drive over a curb. To do so, the car's chassis must not only be higher than the curb, but also leave a safe clearance. Otherwise, the chassis and curb can collide, potentially causing damage to the vehicle.

[0003] In the prior art, Chinese Patent Publication No. CN103538522B discloses a reverse collision warning device, and Chinese Patent Publication No. CN110154892B discloses a nighttime parking lot collision warning device. While these two patents improve safety when reversing and when parking, respectively, neither addresses the risk of dynamic collisions between the vehicle's underbody and curbs.

[0004] Currently, the industry still relies on passive measures to protect against chassis collision risks, such as installing metal guards or increasing chassis rigidity. However, these solutions can only reduce the severity of damage and cannot achieve active warning and avoidance. Therefore, we propose an anti-collision alarm device for automobiles. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is: how to actively warn when the chassis may collide with the curb to avoid the collision.

[0006] In order to solve the above problems, the present invention provides an anti-collision alarm device for an automobile, comprising a support box and an anti-collision alarm system, the support box being fixedly installed at the front of the automobile, an electric push rod arranged vertically downward being fixedly installed in the support box, the output end of the electric push rod being fixedly connected to a connecting plate, the bottom end of the connecting plate being fixedly installed with a pressure sensor, an anti-collision gap feeling rod being arranged just below the pressure sensor, a through-strut being arranged in the support box, a through-connection groove matching the through-strut being opened on the anti-collision gap feeling rod, the through-strut being passed through the through-connection groove and being slidably connected thereto, and the through-strut being fixedly connected to the connecting plate, the top end of the anti-collision gap feeling rod being against the pressure sensor, the bottom end of the anti-collision gap feeling rod being passed through the bottom outer wall of the support box and being slidably connected thereto, and the bottom end of the anti-collision gap feeling rod being flush with the chassis of the automobile;

[0007] The anti-collision detection and warning system includes a gap measurement control module, an analysis and control warning module, and an alarm reminder module. The gap measurement control module is connected to the electric push rod signal, the pressure sensor is connected to the analysis and control warning module signal, the analysis and control warning module is connected to the gap measurement control module and the alarm reminder module. A safety threshold is preset in the gap measurement control module, and the value of the safety threshold is 3-8cm.

[0008] In the above-mentioned anti-collision alarm device for automobiles, before the automobile drives onto the curb, it will test whether there is sufficient safety clearance between the automobile chassis and the curb, and will actively issue an early warning when it is tested that the safety clearance is insufficient, which can fundamentally avoid the risk of collision between the chassis and the curb.

[0009] As a further improvement of the present application, a slow-down protection and measurement groove is provided at the top of the anti-collision and gap-measuring rod, and a pressure transmission block matching it is movably arranged in the slow-down protection and measurement groove. A pressure spring is fixedly installed on the inner wall of the bottom end of the slow-down protection and measurement groove, and the top end of the pressure spring is fixedly connected to the bottom end of the pressure transmission block. A slide groove matching the anti-collision and gap-measuring rod is provided at the bottom end of the support box, and the anti-collision and gap-measuring rod passes through the slide groove and is slidably connected thereto.

[0010] As a further improvement of the present application, the pressure spring is in a compressed state, the top of the pressure transmission block is flush with the top of the anti-collision gap measuring rod, and the pressure transmission block is against the pressure sensor.

[0011] As a further improvement of the present application, the through-strut is configured to be U-shaped, and a pair of restoring springs are sleeved on the through-strut, and the pair of restoring springs are respectively located on the left and right sides of the anti-collision gap measuring rod.

[0012] As a further improvement of the present application, matching spring limit plates are provided on both sides of the anti-collision gap detecting rod, the spring limit plates are fixedly connected to the through-bracing rod, and the bottom end of the spring limit plates is flush with the top end of the anti-collision gap detecting rod.

[0013] As another improvement of the present application, an elastic water bag is fixedly installed on the outer wall of the support box. The elastic water bag is made of elastic material and filled with water. A water hose is connected to the side wall of the elastic water bag. The end of the water hose away from the elastic water bag is connected to the slow protection and measurement groove.

[0014] As another improvement supplement to the present application, the slow protection and additional measurement groove is also filled with water, the pressure transmission block is slidingly and sealingly connected to the slow protection and additional measurement groove, and the bottom end of the elastic water bag is flush with the bottom end of the anti-collision gap measuring rod.

[0015] As another improved supplement to the present application, the anti-collision warning system also includes a vehicle speed acquisition module and a speed-based control module. The vehicle speed acquisition module is connected to the speed-based control module signal, and the speed-based control module is connected to the pressure sensor signal. The vehicle speed acquisition module is used to obtain the real-time vehicle speed.

[0016] As another improvement supplement to the present application, a vehicle speed threshold is preset in the speed control module. When the real-time vehicle speed is not less than the vehicle speed threshold, the speed control module turns off the pressure sensor. When the real-time vehicle speed is less than the vehicle speed threshold, the speed control module starts the pressure sensor.

[0017] To sum up, the anti-collision alarm device in this application can test whether there is sufficient safety gap between the chassis of the car and the curb before the car drives onto the curb, and can actively warn when the safety gap is insufficient, so as to fundamentally avoid the risk of collision between the chassis and the curb, thereby improving the safety of the car; through the combined setting of the protection and measurement groove, pressure spring, pressure transmission block, etc., it can not only provide a buffering effect without affecting the test results, effectively avoiding damage to the electric push rod, pressure sensor, etc., but also realize further testing to avoid inaccurate test results due to the tilt of the curb, thereby improving the comprehensiveness and accuracy of the test, and further avoiding the risk of collision between the chassis and the curb; through the combined setting of the elastic water bag, water hose, etc., when the car approaches the curb, if the chassis of the car is lower than the curb, the anti-collision alarm device will also sound an alarm to warn, thereby effectively preventing the front of the car from colliding with the curb, further improving the safety of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0019] Figure 2 This is a schematic cross-sectional view of the support box in the first embodiment of the present application;

[0020] Figure 3 This is a side view of the structure of the anti-collision feeler rod in the first embodiment of the present application;

[0021] Figure 4 This is a schematic front cross-sectional structure diagram of the anti-collision feeler rod in the first embodiment of the present application;

[0022] Figure 5 This is a structural block diagram of the anti-collision warning system in the first embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present application;

[0024] Figure 7 This is a schematic cross-sectional view of the support box in the second embodiment of the present application;

[0025] Figure 8 This is a schematic front cross-sectional structure diagram of the anti-collision feeler rod in the second embodiment of the present application;

[0026] Figure 9 This is a structural block diagram of the anti-collision detection and warning system in the second embodiment of this application.

[0027] Description of the numbers in the figure:

[0028] 101. Support box; 102. Electric push rod; 103. Connecting plate; 104. Pressure sensor; 105. Anti-collision gap measuring rod; 106. Through-support rod; 107. Through-connecting groove; 108. Slide groove; 109. Spring-limiting plate; 110. Return spring; 201. Buffer and additional measuring groove; 202. Pressure spring; 203. Pressure transmission block; 301. Elastic water bag; 302. Water guide hose. DETAILED DESCRIPTION

[0029] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0030] The first implementation method:

[0031] Figure 1-Figure 5 The figure shows an anti-collision alarm device for automobiles, comprising a support box 101 and an anti-collision alarm system. The support box 101 is fixedly mounted at the front of the automobile. An electric push rod 102 arranged vertically downward is fixedly mounted in the support box 101. The output end of the electric push rod 102 is fixedly connected to a connecting plate 103. A pressure sensor 104 is fixedly mounted at the bottom end of the connecting plate 103. An anti-collision gap feeler rod 105 is arranged just below the pressure sensor 104. There is a through-strut 106, and the anti-collision gap feeler rod 105 is provided with a through-connecting groove 107 that matches the through-strut 106. The through-strut 106 passes through the through-connecting groove 107 and is slidably connected thereto, and the through-strut 106 is fixedly connected to the connecting plate 103. The top of the anti-collision gap feeler rod 105 abuts against the pressure sensor 104, and the bottom end of the anti-collision gap feeler rod 105 passes through the outer wall of the bottom end of the support box 101 and is slidably connected thereto. The bottom end of the anti-collision gap feeler rod 105 is flush with the chassis of the car;

[0032] The anti-collision detection and warning system includes a gap measurement control module, an analysis and control warning module, and an alarm reminder module. The gap measurement control module is connected to the electric push rod 102 by signal, and the pressure sensor 104 is connected to the analysis and control warning module by signal. The analysis and control warning module is connected to the gap measurement control module and the alarm reminder module by signal. A safety threshold is preset in the gap measurement control module, and the value of the safety threshold is 3-8cm.

[0033] The anti-collision detection and warning system can be integrated into the car's central control system or into an independent controller (if integrated into the controller, the controller must be installed in the cab). The car owner (vehicle driver) can send instructions to the gap detection control module in a corresponding manner (such as buttons on the center console or buttons on the controller, etc.). This is existing technology and will not be elaborated here.

[0034] When the car needs to drive onto the curb, the car owner can first drive the vehicle slowly towards the curb until the anti-collision gap feeler rod 105 moves above the curb, and then send a test instruction to the gap feeler control module. After receiving the instruction, the gap feeler control module will control the electric push rod 102 to push the anti-collision gap feeler rod 105 to move downward according to the preset safety threshold (the distance the anti-collision gap feeler rod 105 moves downward is equal to the safety threshold). In the process of the anti-collision gap feeler rod 105 moving downward, if the bottom end of the anti-collision gap feeler rod 105 touches the curb, it means that although the chassis of the car is higher than the curb, the gap between the two is less than the safety threshold, and the safety gap is insufficient. If the vehicle drives onto the curb, there is a gap between the chassis and the curb. There is a greater risk of collision. Since the anti-collision gap feeler rod 105 touches the curb, the pressure data measured by the pressure sensor 104 will increase significantly, and the pressure data measured by the pressure sensor 104 will be transmitted to the analysis and control alarm module in real time, so that the analysis and control alarm module can discover this situation by analyzing the pressure data. At this time, the analysis and control alarm module will immediately send a signal to the gap feeler control module, so that the gap feeler control module will promptly control the electric push rod 102 to stop pushing the anti-collision gap feeler rod 105 to prevent the electric push rod 102, the pressure sensor 104, etc. from being damaged. At the same time, the analysis and control alarm module will control the alarm reminder module to sound an alarm to warn the car owner, causing the car owner to give up driving onto the curb.

[0035] On the other hand, if the pressure data measured by the pressure sensor 104 does not increase significantly until the anti-collision gap feeler rod 105 has completely moved downward, it means that the bottom end of the anti-collision gap feeler rod 105 has not touched the curb, and the gap between the car chassis and the curb is not less than the safety threshold. There is sufficient safety gap, and the car can safely drive onto the curb. At this time, the analysis and control module will control the alarm reminder module to emit a warning sound indicating safety. After hearing the warning sound, the car owner can carefully drive the car onto the curb.

[0036] In addition, in some similar scenarios, such as when a car needs to pass through a raised obstacle, the above operations can also be used to test first, and then choose to continue passing or give up based on the test results and feedback;

[0037] Therefore, the anti-collision alarm device in this application can test whether there is sufficient safety gap between the car chassis and the curb before the car drives onto the curb, and can actively issue an early warning when it is tested that the safety gap is insufficient, so as to fundamentally avoid the risk of collision between the chassis and the curb, thereby improving the safety of the car.

[0038] A slow-protection and increased-measurement groove 201 is provided at the top of the anti-collision and gap-measuring rod 105, and a pressure transmission block 203 matching it is movably arranged in the slow-protection and increased-measurement groove 201. A pressure spring 202 is fixedly installed on the inner wall of the bottom end of the slow-protection and increased-measurement groove 201, and the top of the pressure spring 202 is fixedly connected to the bottom end of the pressure transmission block 203. A slide groove 108 matching the anti-collision and gap-measuring rod 105 is provided at the bottom end of the support box 101. The anti-collision and gap-measuring rod 105 passes through the slide groove 108 and is slidably connected thereto. The pressure spring 202 is in a compressed state, the top of the pressure transmission block 203 is flush with the top of the anti-collision and gap-measuring rod 105, and the pressure transmission block 203 is against the pressure sensor 104.

[0039] When the safety gap is insufficient, that is, when the anti-collision gap feeling rod 105 touches the curb during the downward movement, in order to further prevent the electric push rod 102, the pressure sensor 104, etc. from being damaged, a buffering effect can be provided under the joint action of the buffering groove 201, the pressure spring 202, and the pressure transmission block 203, without affecting the test results, thereby effectively preventing the electric push rod 102, the pressure sensor 104, etc. from being damaged;

[0040] In addition, the curb may also be inclined. If the curb is inclined upward along the direction of the car's movement, even if the current test result shows that there is sufficient safety clearance, the car chassis may still collide with the curb. In order to avoid this phenomenon, the car owner can slowly drive the vehicle forward after hearing the safety prompt sound until the front wheels of the car are against the curb. Since the pressure transmission block 203 is in a compressed state, although the anti-collision gap rod 105 does not touch the curb, the pressure sensor 104 will also be subjected to a certain pressure. In the process of the car continuing to move forward, if the curb is inclined and the highest point is higher than the bottom end of the anti-collision gap rod 105 at this time, the anti-collision gap rod 105 will be pushed, causing the anti-collision gap rod 105 and the pressure sensor 104 to collide. 4 is separated, which will cause the pressure data measured by the pressure sensor 104 to drop significantly. Therefore, the analysis and control module can learn of this situation by analyzing the pressure data. At this time, the analysis and control module will control the alarm reminder module to sound an alarm, causing the car owner to brake in time to stop and give up driving onto the curb. On the contrary, if the car owner does not hear the alarm until the front wheel hits the curb, it means that the car owner can drive the vehicle onto the curb. At this time, the car owner can issue a reset command to the gap detection control module and then carefully drive onto the curb. After receiving the reset command, the gap detection control module will control the electric push rod 102 to drive the anti-collision gap detection rod 105 to move upward and reset. In addition, the car owner also needs to issue a reset command to the gap detection control module after hearing the alarm.

[0041] Therefore, through the joint arrangement of the buffering and additional measurement groove 201, the pressure spring 202, the pressure transmission block 203, etc., not only can a buffering effect be provided without affecting the test results, effectively avoiding damage to the electric push rod 102, the pressure sensor 104, etc., but further testing can also be achieved to avoid inaccurate test results due to the tilted curb, thereby improving the comprehensiveness and accuracy of the test, and further avoiding the risk of collision between the chassis and the curb.

[0042] The through-strut 106 is set to be U-shaped, and a pair of return springs 110 are provided on the through-strut 106. The pair of return springs 110 are respectively located on the left and right sides of the anti-collision gap feeling rod 105, so that the anti-collision gap feeling rod 105 can automatically reset after being pushed by the inclined curb. The left and right sides of the anti-collision gap feeling rod 105 are provided with matching spring limit plates 109. The spring limit plates 109 are fixedly connected to the through-strut 106, and the bottom end of the spring limit plates 109 is flush with the top end of the anti-collision gap feeling rod 105. The spring limit plates 109 can prevent the pressure transmission block 203 from popping out of the slow protection and measurement groove 201, which can be beneficial to the automatic reset of the anti-collision gap feeling rod 105.

[0043] The second implementation method:

[0044] Figure 6-Figure 9 A car anti-collision alarm device is shown. Different from the first embodiment, an elastic water bag 301 is fixedly installed on the outer wall of the support box 101. The elastic water bag 301 is made of elastic material and is filled with water. A water hose 302 is connected to the side wall of the elastic water bag 301. The end of the water hose 302 away from the elastic water bag 301 is connected to the slow protection and increased measurement groove 201, and the slow protection and increased measurement groove 201 is also filled with water. The pressure transmission block 203 is slidingly and sealingly connected to the slow protection and increased measurement groove 201, and the bottom end of the elastic water bag 301 is flush with the bottom end of the anti-collision gap measuring rod 105.

[0045] Before the test begins, when the car approaches the curb, if the curb is higher than the car chassis, the front of the car or the support box 101 may collide with the curb. To avoid this phenomenon, in this embodiment, when the car approaches the curb, if the curb is higher than the car chassis, before the front of the car or the support box 101 collides with the curb, the elastic water bag 301 will first be squeezed by the curb. This squeezing of the elastic water bag 301 will cause the water in the elastic water bag 301 to be squeezed, thereby applying an upward thrust to the pressure transmission block 203, which in turn increases the pressure on the pressure sensor 104. After the analysis and control module discovers this situation by analyzing the pressure data, it will control the alarm reminder module to sound an alarm, causing the driver to brake and stop in time. Therefore, through the combined arrangement of the elastic water bag 301, the water guide hose 302, etc., when the car approaches the curb, if the car chassis is lower than the curb, the anti-collision alarm device will also sound an alarm to warn, thereby effectively preventing the front of the car from colliding with the curb and further improving the safety of the car.

[0046] The anti-collision detection and warning system also includes a vehicle speed acquisition module and a speed-based control module. The vehicle speed acquisition module is connected to the speed-based control module signal, and the speed-based control module is connected to the pressure sensor 104 signal. The vehicle speed acquisition module is used to obtain the real-time vehicle speed. When the vehicle speed is fast, the airflow impacting the elastic water bag 301 will also cause the pressure on the pressure sensor 104 to increase, which will cause a false alarm. In order to avoid this phenomenon, a vehicle speed threshold is preset in the speed-based control module. When the real-time vehicle speed is not less than the vehicle speed threshold, the speed-based control module will turn off the pressure sensor 104, thereby effectively avoiding false alarms. When the real-time vehicle speed is less than the vehicle speed threshold, the speed-based control module will start the pressure sensor 104, thereby ensuring the effectiveness of the anti-collision alarm device.

[0047] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An anti-collision alarm device for a car, comprising a support box (101), characterized in that: The support box (101) is fixedly installed at the front of the car, and an electric push rod (102) arranged vertically downward is fixedly installed in the support box (101). The output end of the electric push rod (102) is fixedly connected to a connecting plate (103), and a pressure sensor (104) is fixedly installed at the bottom end of the connecting plate (103). An anti-collision gap detection rod (105) is arranged directly below the pressure sensor (104). A through-bracing rod (106) is arranged in the support box (101), and the anti-collision gap detection rod A through-connection groove (107) matching the through-connection rod (106) is provided on (105), the through-connection rod (106) passes through the through-connection groove (107) and is slidably connected thereto, and the through-connection rod (106) is fixedly connected to the connecting plate (103), the top end of the anti-collision gap rod (105) is against the pressure sensor (104), the bottom end of the anti-collision gap rod (105) passes through the bottom outer wall of the support box (101) and is slidably connected thereto, and the bottom end of the anti-collision gap rod (105) is flush with the chassis of the automobile; The anti-collision detection and warning system includes a gap detection control module, an analysis and warning module, and an alarm reminder module. The gap detection control module is connected to the electric push rod (102) by signal, the pressure sensor (104) is connected to the analysis and warning module by signal, the analysis and warning module is connected to the gap detection control module and the alarm reminder module by signal, and a safety threshold is preset in the gap detection control module, and the value of the safety threshold is 3-8 cm. The top of the anti-collision gap measuring rod (105) is provided with a slow-protection and increased measurement groove (201), and a pressure transmission block (203) matching the slow-protection and increased measurement groove (201) is movably provided therein, and a pressure spring (202) is fixedly installed on the inner wall of the bottom end of the slow-protection and increased measurement groove (201), and the top end of the pressure spring (202) is fixedly connected to the bottom end of the pressure transmission block (203), and the bottom end of the support box (101) is provided with a slide groove (108) matching the anti-collision gap measuring rod (105), and the anti-collision gap measuring rod (105) passes through the slide groove (108) and is slidably connected thereto, and the support box (101) is provided with a slow-protection and increased measurement groove (201). 1) is also fixedly mounted on the outer wall thereof, wherein the elastic water bag (301) is made of an elastic material and is filled with water. A water guide hose (302) is connected to the side wall of the elastic water bag (301), and one end of the water guide hose (302) away from the elastic water bag (301) is connected to the slow protection and increased measurement groove (201), and the slow protection and increased measurement groove (201) is also filled with water. The pressure transmission block (203) is slidably and sealingly connected to the slow protection and increased measurement groove (201), and the bottom end of the elastic water bag (301) is flush with the bottom end of the anti-collision gap measuring rod (105).

2. The anti-collision alarm device for automobile according to claim 1, characterized in that: The pressure spring (202) is in a compressed state, the top end of the pressure transmission block (203) is flush with the top end of the anti-collision gap measuring rod (105), and the pressure transmission block (203) is in contact with the pressure sensor (104).

3. The anti-collision alarm device for automobile according to claim 2, characterized in that: The through-strut rod (106) is configured to be U-shaped. A pair of restoring springs (110) is sleeved on the through-strut rod (106). The pair of restoring springs (110) are respectively located on the left and right sides of the anti-collision gap measuring rod (105).

4. The anti-collision alarm device for automobile according to claim 3, characterized in that: The left and right sides of the anti-collision gap-feeling rod (105) are both provided with elastic limiting plates (109) matched therewith, the elastic limiting plates (109) are fixedly connected to the through-bracing rod (106), and the bottom end of the elastic limiting plates (109) is flush with the top end of the anti-collision gap-feeling rod (105).

5. The anti-collision alarm device for automobile according to claim 1, characterized in that: The anti-collision detection and warning system further comprises a vehicle speed acquisition module and a speed-dependent control module, wherein the vehicle speed acquisition module is signal-connected to the speed-dependent control module, and the speed-dependent control module is signal-connected to the pressure sensor (104), and the vehicle speed acquisition module is used to obtain real-time vehicle speed.

6. The anti-collision alarm device for automobile according to claim 5, characterized in that: A vehicle speed threshold is preset in the speed control module. When the real-time vehicle speed is not less than the vehicle speed threshold, the speed control module turns off the pressure sensor (104); when the real-time vehicle speed is less than the vehicle speed threshold, the speed control module starts the pressure sensor (104).

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